Term
| The four layers of the earth |
|
Definition
The four layers of the earth are:
crust
mantle
outer core
inner core |
|
|
Term
|
Definition
| The lithosphere is made up of the crust and top part of the mantle. |
|
|
Term
|
Definition
| Sections of the lithosphere |
|
|
Term
|
Definition
| A buildup of pressure causes plate boundaries to jerk and move. This creates a shaking of the earth. |
|
|
Term
|
Definition
| Volcanoes form when converging plate boundaries collide. As one plate slides underneath the other, one plate partially melts, creating magma. The magma rises to the earth's surface through a weak spot in the crust. When the magma reaches the earth's surface, it becomes magma. |
|
|
Term
| Constructive vs. Destructive process in nature |
|
Definition
A constructive process builds something (volcanoes)
A Destructive process destroys something (hurricane, tornado, earthquakes) |
|
|
Term
|
Definition
The two types of weathering are mechanical and chemical.
mechanical - physical process (ice, plant roots)
chemical -rock is dissolved (acid rain, carbonic acid) |
|
|
Term
|
Definition
Topsoil - contains the most decayed matter from plants, animals, and bacteria.
Subsoil - contains less decayed matter and more minerals.
Bedrock - nearly solid rock |
|
|
Term
|
Definition
| The Wearing away of something through wind, or water. |
|
|
Term
|
Definition
| Movement of the waves erodes rocks and beaches. Harbors and inlets are formed when areas of the coast erode more quickly than others. |
|
|
Term
|
Definition
| Farmers are affected by wind erosion when topsoil is blown off the land. This topsoil contains the best material for growing crops. Farmers can plant trees along the edge of the fields and plow across the fields to minimize the erosion of their fields. |
|
|
